Weighing-machine.



No. 857.870 PATENTED JUNE 25 190?.

G. OASSADY. WEIGHING MACHINE.

APPLICATION FILED FEB.11,1907.

2 SHEETS-SHEET l.

WITNESSES: i/VVEJVTOR PATENTED-JUNE 25, 1907' G. CASSADY. WEIGHING MACHINE. APPLICATION 3mm) FEB. 11. 1907.

2 SHEETS-SHEET 2.

NYE/V705 Georg e aa/ssady WITNESSES:

Arm/mgr nurrh snare GEORGE CASSADY, or New wns'rivnivsrnn, BRITISH counter CANADA. o

ltJEEGK-liNG WiACI-HNE.

Specification of- Letters Patent.

Patented June 25, 1907..

Application filed February 11, 1907- Serial No. 356,825.

To all whom, it may concern.-

Be it known that I, GEORGE CASSADY, a

. citizen of the Dominion of Canada, residing at New Westminster, in the Province of British Columbia, Canada, have invented a new and useful linprovei'nentin Weighing- Machines, of which the following is a specification. l v I This invention relates to a weight sorting machine designed to select from a continuous I succession of cans delivered to it all that are der a certain predetermined weight, and that will deliver the full weight cans into a chut for delivery from the machine and the lig h weight ones onto a separate table for subsequent attention The machine is fully described in the following specification reference being made to the drawings by which it is accompanied, in which:

Figure 1 is a sectional elevation of-the ma chine on the line A A in Fig. 2, Fig. 2, a plan of the machine, Fig. 3, a section on the line B B in the directiouof the, arrow B and,i ig'sl 4 and 5 detail views of the can by whichT-the downward tendency of the scale plattenm" confirmed and made definite. i -1 The table it of the machine is supported at aconvenient height from the floor on side frames 2, and the cans are delivered to it by an entering chute 5, in which a feeding and spacing device of approved design may be placed. Forming a continuation of the chute 5 an endless conveyer band 19 passes over the table 4 of the machine in the direction of the arrow "F and over band pulleys 18 secured to the driving shaft 16 and a shaft 17 rotatable in bearings in the side frames 2. Beyond where the band 19 passes beneath the table a downwardly inclined delivery chute 6 conveys from the machine thefnll weight cans, selected in a manner to be deand conveyer hand 19 onto either platform 21 alternately and each can will rest upon its platform for a ,sulhcient time to determine. Whether'it is of such weight as to depress the platform below the level of theslideways 7 which stand slightly above the level of the uper face or the conveyer band 19, see and 1f the platform falls below the level of the slideway to that of the conveyor band the lower edge of the can will contact with the edge of the aperture through which the platform passesand he directed onto the conveyer band.

Each scale platform 21, see Fig 1, has a downwardly projecting stem 22 from which toward the upper end laterally project trunnions 33 having V shaped undersides which rest in. depressions in the forked ends 3d of a lever'35 lulcrumed at 36 in astandard 37 secured to the cross frame 3 of the machine. The lever 35 is extended beyond the fulcrum 36 and is providedwith an adjustablecounterei ht38. The free end of the lever 351101- inal y rests, see'Figs. land 5, under the inliuence of therconnterweight 38 upon the hub 66 'Tlhe platform 21 niai tained'approximately horizontal, and para lel undermovc- 'ment, seel ig. 1, by.'aj; lev'er 42 -pivotally which lever is con- @Qfi llliB-S'tclil 22, meaded on the member 39 when the lever end is in its normal position resting on the hub (56, in which the plane of the slideu 'ay 7 as shown by dot and dash lines in Fig, 1 but if the weight of a can is in excess of the counterweight the platform is depressed and the end of the lever 35 is lifted off the hub 66 and the underside of the member 39 will engage the outer curve of the cam. 67 which will lift the lever 35 to complete the depression of the. platform to t 'a cam, flange secured to the driving mountedby a pin d3 to attachment on the a position the sciile platiorm 21 is level with aily'projiecting These members 67, two in number on each flange, are so situated to be clear of the o ill it, A so 1,8"?

level of the upper face of the conveyer bond 19 and will retain it trier-e a sullicieiit time to permit the can Whichdepressed the scale plstlorm .to be moved from oil it onto the baud. l) Ji1 engagement of the lower edge of the'csu with the curved edge of the aperture in the table occupied by the scale platform. The outer surface of the cam member 67 thereulwr curves toward thc'hub to permit the lever end to fall again on it which downward. movement is rendered positive by a guide member (5% laterally projecting from the can: ilango 65 which guide engages the upper side of the laterally projecting memher ill ol' the lever.

'iiac cans sre transferred from their oath ZllOll the entering chute 5 and conveyer baud 19 onto either scale platform 21 by a transfer lever al secured on a vertical shaft 47 mounted in a frame 48 which spans the width of the I iachioe adjacent to the scale platform. This traverse lever is oscillated from side to side by any suitable mechanism comiected with the driving shalt of the machine. in the drawing the shaft of the transfer lever is shown operated by a lever 49 secured to its upper end and having an upwardly projecting pin 50, which is connected by a. rod 1 to crank pin 52 secured in. crtmlr disk 3, the dish being secured on a vertical shaft -l running in bearings ihasupport The D halt 54 is operated by bevel gears 56 from o ihal t 57 driven by a chain passing over procliot Whe ls 58 on the shaft 57 and on the lrivhig shaft to of the machine.

The cans U are carried oil the scale plat: f rm 2?. and aloe the slide-.vays T, or, if the scale platform has been depressed, are diverte-zl onto the conveyor bond 19 byling' s 63 laterally projecting from sprocket chains 61 running along the outer edge of each slide Way F and j ing round sprocket Wheels 62 secured to the driving shafts to and to the shaft 17 At the enterin end the fingers of these chains pass overtl. .ndot the table 4: or through's-u aperture therein which is outside of the curved border 13 but at the further end Whe e th" fingers have to p ss through the slideway 7 a section of that slideway is hinged at l to lift upward and pernt 1 each finger to the hinged section hours: operated by a member l4) aterally beyond the Width of the slide towai f. sprocket chain and upwardly etc: that itwlll be engaged byeach finger lifted such approaches the his god sec- .L hat pi ion i l of the path adjacent to the scale tform 21 incline": slightly up ward from the le el the top oi the con: veyer band 2.5% to the higher level of slide Witf, 7. with which the upper 'nrfsce of the cale platform normsl rcoincident, and this incline is radial "f irisyilve on the forivero s ale platform. itself.

' ment.

iris-miter by which this chimgc of level is attaioeo however of little importance so long as the cans may be moved off the conveyor band -1 9 onto the scale platform at one end and oil the. scale platform onto the slideway 7 when. light, or oil the platform onto the conveyor band 19 when of full weight.

The driving shaft 16 of the machine is operated by band pulley secured on it, and from tlio shal t 16 all the moving purtsoi' the machine are operated, the mechanism being so arranged that the cam control of the balance lever isexercised twice d iring one revolution of theshsft and similarly the transfer lever 46 carries a can twice to each side during the same movement. This however forms immaterial part of the invention.

In the operation of. the machine the cans are delivered along the entering chute 5 Where they may be spaced and successively fcdto the Weighing machine by a suitable spacing and feeding device. As they come within the reach of the traverse lever 46 they are swept alternately onto one or the other. of the scale platforms 2]. Where they rest for a sufficient time to determine Whether or not they are of the required weight: If light the scale platform 21 is not depressed and is later prevented from being depressed, and the can is carried by the fingers 63 of the sprocket Chitin 61 along the slideway 7 and delivered onto a table for subso uent treat- If however the weight of the can is sufficient to depress the platform a trifling amount the free end of the lever 35 Will be raised to a sutlicient extent to bring the knife edge of the member 39 laterally projecting from the lever 35 above the corresponding edge on the projecting cam member 67 the platform 21'will be positively depressed to the limit necessary to bring its level to that f the band 19. In this position as a can is carried along by. a finger 63 it will engage the curved edge of the aperture in the table 4 through which the platform passes and. will be diverted from the line of the slideway 7' onto the traveling band 19 and will be carried by it to the delivery chute 6 the incline of which Will permit them'to slide down clear of one another.

Where the machine forms apart of an ex tended system, the traveling band 19 may extend heyond the limit of the weighing machine and deliver the cans to the next machine in order, such as a can topper, and similarly the cans may be delivered to the Weighing machine by a conveyor band from can filling machine. It will he noticed that the operation of the machine is practically continuous as fast as the cells can be feclto it: that the Weighing devices are normally at rest, and that the" eaiis only rest on the Weighing latform for thebrief period necessary to etermine if theyhs e shy tendency'to depress it the subsequent movement of the platform being positively completed mechanically, which latter feature permits tion.

Having now particularly described my invention and the manner of its operation and use I hereby declare that What I claim as new and desire to be protected in by Letters. Patent, is:

1. In a weight sorting machine, a scale bal ance, means for maintaining said scale balnation with a table suitably supported and having tracks at diflerent levels, a scale balance having a platform arranged adjacent to both tracks, and norm ally at the level of the higher track, means for moving an article onto the platform of the balance, means for mechanically and positively preventing or confirming any downward movementof the platform to the lower level, means for moving an article off the scale platform and along the high level track ifthe weight of the article is insufficient to depress the platform of the of very rapid opera-.

balance, and means for directing the article off the scale platform onto the low level track if the weight of such article is suflicient to depress the weight of the balance, and means for conveying the full weight articles along the low level track.

3. In a weight sorting machine, the combi nation with a table suitably supported having parallel tracks at different levels, a scale balance the platform of which is adjacent to both tracks and moves through an aperture in the table the edge of the aperture through which the platform passes being laterally inclined from the high level toward the low level track, means for mechanically and positively "preventing. or confirming any downward movement of the platform to the lower level, means for moving an article ontothe scale platform, means for conveying an article from the scale platform along the high level track if the weight of such article is un-- able to depress the platform but that will move the article against the inclined edge of I the aperture through which the scale platform passes and deliver it onto the low level track if the weight of the article is sufficient to depress the platform, and means for con veying the article along the low level track. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

, GEORGE CASSADY. Witnesses:

-ROWLAND BnrrTAnv,

OLIVE S. CARMAN. 

